George H.W. Bush through the years

Former President George H.W. Bush, 90, was at Reliant Stadium for the Philadelphia Eagles-Houston Texans game on Nov. 2, 2014, in Houston. Take a look back on the life and career of the nation's 41st president.

An Iranian military observation aircraft flew within 50 yards of an armed U.S. Navy helicopter over the Persian Gulf this month, sparking concern that top Iranian commanders might not be in full control of local forces, CNN has learned.